Water pump and humidifier

Abstract

A water pump, comprising a stator assembly (1), a rotor assembly (2), and an end cover (3). An impeller (4) is connected to the rotor assembly (2), the end cover (3) at least seals the rotor assembly (2) and the impeller (4) within an accommodating cavity (6), a hooking structure (5) is provided on the side of the end cover (3) facing the impeller (4), the hooking structure (5) is configured to hang below the end cover (3) when the impeller (4) is assembled into or separated from the accommodating cavity (6), and the hooking structure (5) does not come into contact with the impeller (4) after the impeller (4) is assembled into the accommodating cavity (6). Also provided is a humidifier, comprising the water pump. The impeller of the water pump is easy to remove for cleaning, solving the problem that the water pump is jammed and cannot rotate.

Description

Water pump and humidifier

[0001] Cross-reference to related applications

[0002] This application claims priority to the Chinese patent application No. CN202411081406.7, filed on August 08, 2024, and entitled “Water pump and humidifier”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of humidifier water pump, in particular to a water pump and a humidifier using the same. BACKGROUND

[0004] The non-mist humidifier with a spray type wetting water curtain is usually provided with a water tank, a wet curtain is arranged at the upper portion of the water tank, water in the water tank is pumped to the upper portion of the wet curtain by a water pump, the wet curtain is wetted by spraying, and dry air is blown or sucked to penetrate the wet curtain to the air by a fan to achieve the purpose of humidification.

[0005] After the humidifier is used for a period of time, scale or accumulated foreign matter can easily cause the water pump to be blocked and not to rotate.

[0006] SUMMARY

[0007] The present application aims to, for example, provide a water pump and a humidifier to solve the problem of water pump blockage and non-rotation, and the impeller can be conveniently taken out for cleaning, thereby quickly solving the problem of water pump blockage and non-rotation.

[0008] Embodiments of the present application are implemented as follows:

[0009] The embodiments of the present application provide a water pump, which comprises a stator assembly, a rotor assembly and an end cover, the rotor assembly is connected with an impeller, the end cover at least covers the rotor assembly and the impeller in a containing cavity, a hooking structure is arranged on one side of the end cover facing the impeller, the hooking structure is configured to be hung below the end cover when the impeller is assembled into or separated from the containing cavity, and the hooking structure is not in contact with the impeller after the impeller is assembled into the containing cavity.

[0010] Optionally, the impeller comprises an impeller body and a connecting shaft, the impeller body comprises a disc body and blades connected to the disc body, and the connecting shaft is connected with the disc body and the rotor assembly at two axial ends respectively.

[0011] Optionally, the hooking structure comprises an arc-shaped rib, an inner arc radius of the arc-shaped rib is greater than a radius of the connecting shaft and less than a radius of the disc body, two ends of the arc-shaped rib extend in a direction away from an arc center of the arc-shaped rib to form extension portions, the extension portions are connected with the end cover, and the arc-shaped rib can hang the impeller.

[0012] Optionally, the extension part extends along the edge of the end cover to form an arc-shaped side wall, and a buckle structure is arranged on the outer side of the arc-shaped side wall, and the end cover is detachably connected with the stator assembly through the buckle structure.

[0013] Optionally, the end cover is connected with the stator assembly in an interference fit.

[0014] Optionally, the hooking structure includes at least three protruding ribs, which are uniformly distributed along the end cover; the protruding ribs are bent towards the center of the disc after extending from the end cover to the axis of the connecting shaft by a certain distance; the end of the protruding ribs is inside the circle with a radius greater than the radius of the connecting shaft and less than the radius of the disc; and the protruding ribs can suspend the impeller.

[0015] Optionally, the protruding ribs are elastic protruding ribs.

[0016] Optionally, the extension part extends along the edge of the end cover to form an arc-shaped side wall, and a buckle structure is arranged on the outer side of the arc-shaped side wall, and the end cover is detachably connected with the stator assembly through the buckle structure.

[0017] Optionally, the accommodating cavity includes a rotor accommodating cavity and an impeller accommodating cavity, the rotor accommodating cavity is arranged in the stator assembly; a support shaft is arranged at the center of the rotor accommodating cavity; the impeller accommodating cavity is in communication with the rotor accommodating cavity, and the impeller is accommodated in the impeller accommodating cavity; wherein the rotor assembly has a central shaft hole, the rotor assembly is accommodated in the rotor accommodating cavity, and the central shaft hole is sleeved with the support shaft.

[0018] Optionally, the end of the support shaft protrudes from the cavity bottom of the rotor accommodating cavity and extends into the impeller accommodating cavity.

[0019] Optionally, a boss is arranged on the support shaft, and the rotor assembly is supported to the boss, so that the impeller body avoids the hooking structure along the axis direction of the connecting shaft.

[0020] Optionally, an avoiding groove is arranged at the joint of the impeller accommodating cavity and the rotor accommodating cavity of the stator assembly, and the hooking structure is avoided through the avoiding groove when the water pump is assembled.

[0021] Optionally, the water pump further includes a filter, the filter is connected to the side of the end cover away from the hooking structure, and the filter is rotationally connected with the end cover.

[0022] Embodiments of the present application also provide a humidifier including the above-mentioned water pump.

[0023] Optionally, the humidifier further comprises a barrel, and the water pump is arranged below the bottom of the barrel.

[0024] Optionally, the bottom of the barrel is provided with a through hole communicating with the inside of the barrel, the barrel is externally provided with a shell, and the shell is sealingly connected with the barrel at the through hole; and the water pump is arranged in the shell.

[0025] Optionally, a damping component is filled between the water pump and the shell.

[0026] Optionally, the humidifier further comprises a blockage detection module configured to determine whether the water pump is blocked by detecting the current of the water pump.

[0027] Optionally, the humidifier further comprises a display module connected with the blockage detection module and configured to display when the water pump is blocked.

[0028] The above technical solutions of the present application have the following beneficial effects compared with the prior art, for example:

[0029] The water pump and the humidifier provided by the embodiments of the present application, the water pump comprises a stator assembly, a rotor assembly, an end cover and a hooking structure, the rotor assembly is connected with an impeller, the end cover covers the rotor assembly, the impeller and the hooking structure in a containing cavity, the hooking structure is suspended below the end cover, and the hooking structure is used for hooking the impeller when the impeller needs to be taken out for cleaning. Only the end cover is operated to be removed to drive the hooking structure to hook the impeller to be taken out from the containing cavity, so that the impeller can be taken out for cleaning very conveniently, and the problem of water pump blockage and non-rotation is quickly solved. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0031] Fig. 1 is a perspective structural schematic view of the water pump provided by the embodiments of the present application;

[0032] Fig. 2 is an exploded view of the water pump shown in Fig. 1;

[0033] Fig. 3 is a sectional view of the water pump shown in Fig. 1;

[0034] Fig. 4 is an assembly schematic view of the impeller and the rotor assembly in the water pump shown in Fig. 2;

[0035] Fig. 5 is a front view of Fig. 4;

[0036] Fig. 6 is a schematic view of an end cover with a hooking structure according to an embodiment of the present application;

[0037] Fig. 7 is a schematic view of Fig. 6 from another perspective;

[0038] Fig. 8 is a schematic view of a stator assembly of the water pump shown in Fig. 2;

[0039] Fig. 9 is an assembly view of the stator assembly and a rotor assembly of the water pump shown in Fig. 2;

[0040] Fig. 10 is a schematic view of a water pump according to another embodiment of the present application;

[0041] Fig. 11 is a cross-sectional view of Fig. 10;

[0042] Fig. 12 is a schematic view of an end cover with a hooking structure according to an embodiment of the present application;

[0043] Fig. 13 is a schematic view of a humidifier according to an embodiment of the present application;

[0044] Fig. 14 is an exploded view of the humidifier shown in Fig. 13;

[0045] Fig. 15 is a cross-sectional view of the humidifier shown in Fig. 13;

[0046] Fig. 16 is an enlarged view of a portion A of the humidifier shown in Fig. 15.

[0047] Reference signs in the drawings: 100 - water pump; 200 - humidifier; 1 - stator assembly, 11 - avoiding groove, 12 - water outlet; 2 - rotor assembly, 21 - central shaft hole; 3 - end cover, 31 - arc-shaped side wall, 32 - second clamping groove, 33 - slide, 34 - water inlet; 4 - impeller, 41 - impeller body, 411 - disc body, 412 - blade; 42 - connecting shaft; 5 - hooking structure, 51 - arc-shaped rib, 52 - extension, 53 - convex rib; 6 - accommodating cavity, 61 - rotor accommodating cavity, 62 - impeller accommodating cavity, 63 - support shaft, 64 - boss; 7 - clamping structure, 71 - clamping buckle, 72 - first clamping groove; 8 - filter, 82 - frame, 83 - gripping portion; 9 - barrel, 91 - through hole; 10 - shell, 101 - sealing ring; 20 - damping component. DETAILED DESCRIPTION

[0048] The present application will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present application and implement it.

[0049] The embodiments of the present application disclose a water pump, which can conveniently take out an impeller of the water pump for cleaning, so as to quickly solve the problem of blockage and non-rotation of the water pump.

[0050] Referring to FIG. 1, FIG. 2 and FIG. 3, the water pump comprises a stator assembly 1, a rotor assembly 2 and an end cover 3, wherein the rotor assembly 2 is connected with an impeller 4; it is to be noted that the rotor assembly 2 and the impeller 4 can be in an integrated structure or in a split structure; when the impeller 4 and the rotor assembly 2 are in an integrated structure, the impeller 4 is taken out together with the rotor assembly 2; when the impeller 4 and the rotor assembly 2 are in a split structure, the impeller 4 is taken out alone.

[0051] The end cover 3 is provided with a water inlet 34 at the center thereof, and the stator assembly 1 is provided with a water outlet 12 at one side thereof; in the optional embodiment of the present application, the end cover 3 and the stator assembly 1 are detachably connected, and the interior of the end cover 3 and the stator assembly 1 forms a containing cavity 6 after the connection of the end cover 3 and the stator assembly 1, and the stator assembly 1, the rotor assembly 2 and the impeller 4 are contained in the containing cavity 6 to form the water pump. In another embodiment, the end cover 3 can also be connected with other components to form the containing cavity 6 in the interior capped by the end cover 3, for example, when the water pump is applied to a humidifier, the end cover 3 can also be connected with the shell of the humidifier to form the containing cavity 6.

[0052] Optionally, the side of the end cover 3 facing the impeller 4 is provided with a hooking structure 5, which is configured to be hung below the end cover 3 when the impeller 4 is assembled into or separated from the containing cavity 6, and the hooking structure 5 does not contact the impeller 4 after the impeller 4 is assembled into the containing cavity 6.

[0053] The water pump in the embodiment of the present application comprises a stator assembly 1, a rotor assembly 2, an end cover 3 and a hooking structure 5, wherein the rotor assembly 2 is connected with an impeller 4, the end cover 3 caps the rotor assembly 2, the impeller 4 and the hooking structure 5 in a containing cavity 6, and the containing cavity 6 is formed when the end cover 3 is capped; in the preferred embodiment, the end cover 3 and the stator assembly 1 are detachably connected, and the interior of the end cover 3 and the stator assembly 1 forms a closed containing cavity 6 after the connection of the end cover 3 and the stator assembly 1, and the rotor assembly 2, the impeller 4 and the hooking structure 5 are capped in the containing cavity 6; when the end cover 3 and the stator assembly 1 are disconnected, for example, the end cover 3 is detached from the stator assembly 1, the end cover 3 drives the hooking structure 5 to hook the impeller 4 and take out the impeller 4 from the containing cavity 6.

[0054] Specifically, in the embodiment of the present application, the position and structure of the hooking structure 5 are associated with the end cover 3, and at least have the following three states:

[0055] State one: when the impeller 4 is assembled into the containing cavity 6, the hooking structure 5 is hung below the end cover 3;

[0056] State two: after the impeller 4 is assembled into the containing cavity 6, the hooking structure 5 is hung below the end cover 3 and does not contact the impeller 4, and does not interfere with the normal rotation of the impeller 4;

[0057] State three: when the impeller 4 is separated from the containing cavity 6, the hooking structure 5 is hung below the end cover 3, and when the end cover 3 is removed, the hooking structure hooks the impeller 4 below it and takes the impeller 4 out of the containing cavity 6 along with the removal of the end cover 3.

[0058] The hooking structure 5 is hung below the end cover 3, and the hooking structure 5 is used to hook the impeller 4 when it is necessary to take out the impeller 4 for cleaning. Only the end cover 3 needs to be removed to drive the hooking structure 5 to hook the impeller 4 and take it out of the containing cavity 6, without the need for any tools, which is very ingenious and convenient. In this way, the impeller 4 can be easily taken out for cleaning, quickly solving the problem of pump blockage and non-rotation.

[0059] Referring to FIGS. 4 and 5, the impeller 4 includes an impeller body 41 and a connecting shaft 42, the impeller body 41 includes a disc body 411 and blades 412 connected to the disc body 411, and the connecting shaft 42 is connected to the disc body 411 and the rotor assembly 2 at both axial ends, respectively. Optionally, referring to FIG. 6, the hooking structure 5 includes an arc-shaped rib 51, the inner arc radius of the arc-shaped rib 51 is greater than the radius of the connecting shaft 42, and the inner arc radius of the arc-shaped rib 51 is less than the radius of the disc body 411; both ends of the arc-shaped rib 51 extend in a direction away from the arc center to form an extension 52, the extension 52 is connected to the end cover 3, and the arc-shaped rib 51 can hang the impeller 4.

[0060] The arc-shaped rib 51 is connected to the end cover 3 in a hanging posture, and after the end cover 3 is connected to the stator assembly 1, the arc-shaped rib 51 is hung along the axial direction of the connecting shaft 42 between the rotor assembly 2 and the disc body 411. Since the inner arc radius of the arc-shaped rib 51 is greater than the radius of the connecting shaft 42 and less than the radius of the disc body 411, the arc-shaped rib 51 does not contact the impeller 4 and does not interfere with the normal rotation of the impeller 4. When it is necessary to disassemble the impeller 4, the connection between the end cover 3 and the stator assembly 1 is released, and then the end cover 3 is moved. The blades 412 or the disc body 411 form an obstruction to the movement of the arc-shaped rib 51, and thus the arc-shaped rib 51 hooks the blades 412 or the disc body 411 when the end cover 3 is moved to take the impeller 4 out of the containing cavity 6.

[0061] Optionally, in order to facilitate the disassembly of the end cover 3, and then facilitate the removal of the impeller 4, in the embodiment of the application, the end cover 3 is detachably connected with the stator assembly 1. In the preferred embodiment, referring to FIGS. 6, 7 and 8, the extension 52 extends along the edge of the end cover 3 to form an arc-shaped side wall 31, and the outer side of the arc-shaped side wall 31 is provided with a buckle structure 7. The end cover 3 is detachably connected with the stator assembly 1 through the buckle structure 7. In one embodiment, the buckle structure 7 includes a buckle 71 and a first clamping groove 72. The buckle 71 is arranged on the outer side of the arc-shaped side wall 31, and the first clamping groove 72 is arranged on the inner wall of the accommodating cavity 6 of the stator assembly 1. When the end cover 3 is assembled with the stator assembly 1, the arc-shaped side wall 31 is arranged in the accommodating cavity 6, and the assembly is achieved through the cooperation of the buckle 71 and the first clamping groove 72. In another embodiment, the positions of the buckle 71 and the first clamping groove 72 are interchanged, that is, the buckle 71 is arranged on the inner wall of the accommodating cavity 6 of the stator assembly 1, and the first clamping groove 72 is arranged on the arc-shaped side wall 31. The detachable assembly of the stator assembly 1 and the end cover 3 can also be achieved. Based on the cooperation of the buckle 71 and the first clamping groove 72, the end cover 3 can be conveniently disassembled, and then the impeller 4 can be conveniently removed. Of course, the end cover 3 and the stator assembly 1 can also be detachably assembled based on other structures in the prior art, such as plug-in connection, threaded connection, etc.

[0062] Optionally, in other embodiments of the application, the end cover 3 and the stator assembly 1 are connected by interference fit. In particular, the end cover 3 is made of plastic, and the interference fit between the end cover 3 and the stator assembly 1 makes it easy to disassemble and not easy to loosen after assembly, by utilizing the deformation characteristics of plastic.

[0063] Referring to FIGS. 8 and 9, the accommodating cavity 6 includes a rotor accommodating cavity 61 arranged in the stator assembly 1. The center of the rotor accommodating cavity 61 is provided with a support shaft 63, and the rotor accommodating cavity 61 is used to accommodate the rotor assembly 2. Referring to FIG. 4, the rotor assembly 2 has a central shaft hole 21. When the rotor assembly 2 is assembled, the central shaft hole 21 is sleeved on the support shaft 63. The cooperation between the support shaft 63 and the central shaft hole 21 enables the rotor assembly 2 to be very conveniently and accurately assembled into the rotor accommodating cavity 61.

[0064] Referring to FIG. 8, the accommodating cavity 6 also includes an impeller accommodating cavity 62 communicating with the rotor accommodating cavity 61. The impeller accommodating cavity 62 is used to accommodate the impeller 4 and the hooking structure 5, so that the end cover 3 can cover the hooking structure 5, the impeller 4 and the rotor assembly 2 in the accommodating cavity 6.

[0065] Optionally, as shown in FIG. 8 and FIG. 9, the end of the support shaft 63 protrudes from the cavity bottom of the rotor accommodating cavity 61 and extends into the impeller accommodating cavity 62. The protruding end of the support shaft 63 serves as a positioning guide when the rotor assembly 2 is assembled into the rotor accommodating cavity 61, so that the rotor assembly 2 can be quickly and accurately positioned and installed.

[0066] In the embodiment, the hooking structure 5 occupies the space in the accommodating cavity 6 to some extent, especially in the axial direction of the connecting shaft 42. In this case, the interference of the hooking structure 5 with the normal operation of the impeller 4 needs to be considered. Optionally, as shown in FIG. 3, FIG. 8 and FIG. 9, the support shaft 63 of the water pump in the embodiment is provided with a boss 64, and the rotor assembly 2 is supported to the boss 64, so that the impeller body 41 has a gap in the axial direction of the connecting shaft 42 with the hooking structure 5 to avoid the hooking structure 5. That is, compared with the conventional water pump design, in the embodiment, the bottom surface of the rotor assembly 2 supported to the impeller body 41 in the axial direction of the connecting shaft 42 is higher than the top surface of the hooking structure 5, so as to avoid the interference with the normal operation of the impeller 4.

[0067] Similarly, considering the interference of the hooking structure 5 with the normal operation of the impeller 4, in another embodiment of the application, as shown in FIG. 8 and FIG. 9, the stator assembly 1 is provided with a avoiding slot 11 at the joint of the impeller accommodating cavity 62 and the rotor accommodating cavity 61. When the water pump is assembled, the hooking structure 5 is avoided through the avoiding slot 11. That is, compared with the conventional water pump design, in the embodiment, the hooking structure 5 is accommodated into the avoiding slot 11 when the impeller 4 is assembled into the accommodating cavity 6. At this time, in the axial direction of the connecting shaft 42, the bottom surface of the impeller body 41 is higher than the top surface of the hooking structure 5, so as to avoid the interference with the normal operation of the impeller 4.

[0068] In other embodiments of the present application, referring to FIG. 10, the water pump further comprises a filter 8 connected to the side of the end cover 3 opposite to the hooking structure 5, water enters the water inlet 34 of the water pump after passing through the filter 8, and impurities are filtered out in advance through the filter 8, which to some extent solves the problem of impurities blocking the impeller 4; the filter 8 can be a filter screen in the prior art, which can intercept impurities of different particle sizes by changing the filter hole diameter of the filter screen. Alternatively, the filter 8 is rotationally connected with the end cover 3. Specifically, for example, referring to FIGS. 7 and 10, three clamping blocks are uniformly distributed around a circle on the filter 8, and three second clamping grooves 32 are uniformly distributed around a circle on the side wall of the end cover 3. The end cover 3 is provided with a sliding channel 33 corresponding to each second clamping groove 32 and communicating with the second clamping groove 32. When assembling the filter 8, the three clamping blocks are respectively inserted into the three sliding channels 33, and then the filter 8 is rotated to make the clamping blocks move along the sliding channels 33 and be clamped into the second clamping grooves 32. When disassembling the filter, the filter 8 is rotated in the opposite direction to make the clamping blocks move in the opposite direction and sequentially disengage from the second clamping grooves 32 and the sliding channels 33. In order to facilitate the disassembly and assembly of the filter 8, a gripping portion 83 is arranged on the frame 82 of the filter 8, and the gripping portion 83 forms a force application fulcrum for disassembling and assembling the filter 8. Alternatively, the filter 8 is integrally connected with the end cover 3, and the gripping portion 83 can also be used to facilitate the removal of the impeller 4.

[0069] Alternatively, referring to FIG. 12, the present application further discloses a water pump. It should be noted that the difference between the present embodiment and the above-mentioned embodiments is only that the hooking structure 5 has a different scheme. The hooking structure 5 comprises at least three protruding ribs 53, and the three protruding ribs 53 are uniformly distributed along the circumference of the end cover 3, i.e. the three protruding ribs 53 are uniformly distributed along the circumferential direction of the end cover 3. The protruding ribs 53 extend from the end cover 3 to the axis direction of the connecting shaft 42 by a certain distance and then are bent towards the center direction of the disc body 411. The inscribed circle radius of the end portion of all the protruding ribs 53 is greater than the radius of the connecting shaft 42, and the inscribed circle radius of the end portion of all the protruding ribs 53 is less than the radius of the disc body 411. The protruding ribs 53 can suspend the impeller 4.

[0070] It should be noted that the hooking structure 5 includes three, four, five, or more number of protrusions 53, which are selected according to the actual requirements of stably hooking the impeller 4. All the protrusions 53 are uniformly distributed along the edge of the end cover 3 and are connected to the end cover 3 in a suspended manner. After the end cover 3 is connected to the stator assembly 1, all the protrusions 53 are suspended along the axis of the connecting shaft 42 between the rotor assembly 2 and the disc body 411. Since the inscribed circle radius of the end of all the protrusions 53 is greater than the radius of the connecting shaft 42 and less than the radius of the disc body 411, the protrusions 53 do not contact the impeller 4 and do not interfere with the normal rotation of the impeller 4. When the impeller 4 needs to be disassembled, the connection between the end cover 3 and the stator assembly 1 is released, and then the end cover 3 is moved. The blades 412 or the disc body 411 block the protrusions 53, so that all the protrusions 53 are hooked on the blades 412 or the disc body 411 when the end cover 3 is moved, to take out the impeller 4 from the accommodating cavity 6.

[0071] Optionally, the radius of the rotor assembly 2 is greater than the radius of the connecting shaft 42. In order to smoothly fit the rotor assembly 2 into the rotor accommodating cavity 61, the inscribed circle radius of the end of all the protrusions 53 needs to be designed to be greater than the radius of the rotor assembly 2. However, the hooking structure 5 can hook the impeller 4, which requires that the inscribed circle radius of the end of all the protrusions 53 be less than the radius of the disc body 411, so that the length of the protrusions 53 is required to be strictly processed. In order to solve this technical problem, in the embodiment of the present application, the protrusions 53 are provided as elastic protrusions. Since the protrusions 53 have elasticity, all the protrusions 53 can be smoothly assembled when the inscribed circle radius of the end of all the protrusions 53 is less than the radius of the rotor assembly 2. In specific implementation, the rotor assembly 2 is forced to expand the protrusions 53 in the direction of the rotor accommodating cavity 61 to smoothly fit into the rotor accommodating cavity 61.

[0072] Optionally, the protrusions 53 extend along the edge of the end cover 3 to form an arc-shaped side wall 31, and the outer side of the arc-shaped side wall 31 is provided with a buckle structure 7. The end cover 3 is detachably connected to the stator assembly 1 through the buckle structure 7. After the protrusions 53 extend to form the arc-shaped side wall 31, the buckle structure 7 on the outer side of the arc-shaped side wall 31 is used to connect the end cover 3 to the stator assembly 1, which is the same as the above-mentioned embodiments, and will not be described here.

[0073] Optionally, the present application also discloses a humidifier, which includes the water pump 100 in the above-mentioned embodiments. The water pump 100 can be installed at any position of the humidifier 200. Since the impeller 4 of the water pump 100 can be very conveniently taken out for cleaning, the humidifier 200 of the present application can very conveniently and quickly solve the problem that the water pump cannot be normally used due to blocking. In addition, since the impeller 4 and the rotor assembly 2 can be taken out separately, the water pump does not need to be replaced as a whole, and the use and maintenance cost is reduced.

[0074] For example, specifically, with reference to FIG. 12 and FIG. 13, the humidifier 200 further comprises a barrel 9, and the water pump 100 is optionally arranged below the bottom of the barrel 9. Specifically, the barrel 9 is provided with a through hole 91 communicating with the inside of the barrel 9, and the barrel 9 is externally provided with a shell 10, which is sealingly connected with the barrel 9 at the through hole 91. The water pump 100 is arranged in the shell 10. The barrel 9 is used to contain water. Since the water pump 100 is arranged below the bottom of the barrel 9, the problem of dry burning and the problem of water pump 100 being unable to pump water due to low water level in the barrel 9 can be solved. However, on the other hand, since the water pump 100 is arranged at the lowest position, dirt will accumulate at the position of the water pump 100, and after a period of time, the impeller 4 in the water pump 100 will be stuck by dirt and solid foreign matter, causing the problem of locked-rotor. The humidifier according to the embodiments of the present application can conveniently and quickly solve the problem of the water pump being unable to work normally due to locked-rotor, since the water pump 100 according to the above embodiments of the present application is used.

[0075] For example, specifically, the shape and size of the through hole 91 are matched with the end cover 3, and the water in the barrel 9 enters the water inlet on the end cover 3 through the through hole 91, so that the water pump 100 pumps out the water. The connection between the shell 10 and the barrel 9 is provided with a sealing ring 101 to prevent water leakage between the two. The sealing ring 101 is made of soft silica gel sealing ring, which plays a certain shock-absorbing role to avoid the vibration of the water pump 100 being directly transmitted to the barrel 9 to form a horn effect. The connection between the shell 10 and the barrel 9 is preferably fixedly connected by screws, which is reliable and stable. As shown in FIG. 14, the filter 8 can be arranged in the barrel 9, which is convenient for taking out the end cover 3 and the impeller 4 from the barrel 9 for cleaning through the filter 8. Of course, if the filter 8 is not arranged, the end cover 3 is preferably arranged in the barrel 9, which is also convenient for operating the end cover 3 to take out the impeller 4 from the barrel 9 for cleaning.

[0076] Optionally, as shown in FIG. 13 and FIG. 14, a shock-absorbing component 20 is filled between the water pump 100 and the shell 10. Since the shock-absorbing component 20 is filled between the water pump 100 and the shell 10, the vibration of the water pump 100 is only transmitted in the small space defined by the shell 10, and the amplitude is small. Compared with the water pump being directly fixed to the bottom of the barrel which is large in volume and hollow, the vibration of the water pump can be avoided from being directly transmitted to the barrel to form a horn effect, which effectively reduces the working noise of the water pump and improves the user experience.

[0077] Optionally, the humidifier 200 further comprises a clogging detection module configured to determine whether the water pump 100 is clogged by detecting the current of the water pump 100. For example, specifically, the humidifier 200 can pre-store a current threshold, and in operation, the current value of the water pump 100 is detected in real time or intermittently, and when the detected current value is greater than the current threshold, it is determined that the water pump 100 is currently clogged. Optionally, the humidifier 200 further comprises a display module connected with the clogging detection module, and when the water pump 100 is clogged, the display module displays, so that the user can directly view from the display module that the water pump 100 is clogged, and timely check and remove the impeller 4 for cleaning. Of course, in other embodiments, the humidifier 200 comprises the clogging detection module and the display module.

[0078] Of course, in other embodiments, the humidifier 200 can further comprise an alarm module, and when it is detected that the water pump 100 is clogged, a voice alarm is given to remind the user to timely check and remove the impeller 4 for cleaning.

[0079] The above embodiments are only preferred embodiments for fully illustrating the present application, and the protection scope of the present application is not limited thereto. Any equivalent replacement or transformation of the present application made by those skilled in the art based on the present application is within the protection scope of the present application. The protection scope of the present application is subject to the claims. Industrial applicability

[0080] In summary, the present disclosure provides a water pump and a humidifier, which can conveniently remove the impeller for cleaning, thereby quickly solving the problem of water pump clogging and non-rotation.

Claims

1. A water pump comprising a stator assembly, a rotor assembly having an impeller attached thereto, and an end cap at least enclosing the rotor assembly and the impeller in a housing cavity, characterized in that: The end cover is provided with a hooking structure on the side facing the impeller, which is configured to be hung below the end cover when the impeller is assembled into or separated from the accommodating cavity, and the hooking structure is not in contact with the impeller after the impeller is assembled into the accommodating cavity.

2. The water pump of claim 1, wherein: The impeller comprises, an impeller body comprising a disc body and blades connected to the disc body; a connecting shaft connected to the disc body and the rotor assembly at both axial ends thereof.

3. The water pump of claim 2, wherein: The hooking structure comprises an arc-shaped rib, an inner arc radius of the arc-shaped rib is greater than a radius of the connecting shaft, and the inner arc radius of the arc-shaped rib is less than a radius of the disc body; both ends of the arc-shaped rib extend in a direction away from an arc center thereof to form an extension part, and the extension part is connected to the end cover; The arc-shaped rib can hang the impeller.

4. The water pump of claim 3, wherein: The extension part extends along a rim of the end cover to form an arc-shaped side wall, an outer side of the arc-shaped side wall is provided with a buckling structure, and the end cover is detachably connected to the stator assembly through the buckling structure.

5. The water pump of claim 1, wherein: The end cover is connected to the stator assembly in an interference fit.

6. The water pump of claim 2, wherein: The hooking structure comprises at least three convex ribs, the three convex ribs are uniformly distributed along a circumference of the end cover; the convex ribs are bent in a direction of a center of the disc body after extending from the end cover to the axis of the connecting shaft by a certain distance, an inscribed circle radius of end portions of all the convex ribs is greater than the radius of the connecting shaft, and the inscribed circle radius of the end portions of all the convex ribs is less than the radius of the disc body; and the convex ribs can hang the impeller.

7. The water pump of claim 6, wherein: The convex ribs are provided as elastic convex ribs.

8. The water pump of claim 6, wherein: The convex ribs extend along a rim of the end cover to form an arc-shaped side wall, an outer side of the arc-shaped side wall is provided with a buckling structure, and the end cover is detachably connected to the stator assembly through the buckling structure.

9. The water pump of claim 2, wherein: The accommodating cavity comprises, a rotor accommodating cavity provided in the stator assembly; a center of the rotor accommodating cavity is provided with a support shaft; an impeller accommodating cavity in communication with the rotor accommodating cavity, and the impeller is accommodated in the impeller accommodating cavity; wherein the rotor assembly has a central shaft hole, the rotor assembly is accommodated in the rotor accommodating cavity, and the central shaft hole is sleeved on the support shaft.

10. The water pump of claim 9, wherein: An end portion of the support shaft protrudes from a cavity bottom of the rotor accommodating cavity and extends into the impeller accommodating cavity.

11. The water pump of claim 9, wherein: A boss is provided on the support shaft, and the rotor assembly is supported to the boss, so that the impeller body avoids the hooking structure in a direction of the axis of the connecting shaft.

12. The water pump of claim 9, wherein: An avoiding groove is provided on the stator assembly at a joint of the impeller accommodating cavity and the rotor accommodating cavity, and the hooking structure is avoided through the avoiding groove when the water pump is assembled.

13. The water pump of claim 1, wherein: A filter is further connected to the end cover on a side away from the hooking structure, and the filter is rotationally connected to the end cover.

14. A humidifier characterised by: The water pump comprises the water pump according to any one of claims 1-13.

15. The humidifier of claim 14, wherein: A barrel is further provided, and the water pump is arranged below a bottom of the barrel.

16. The humidifier of claim 15, wherein: A through hole is provided in the bottom of the barrel and in communication with an inside of the barrel, an outer side of the barrel is provided with a shell, the shell is sealingly connected to the barrel at the through hole, and the water pump is arranged in the shell.

17. The humidifier of claim 16, wherein: A damping component is filled between the water pump and the shell.

18. The humidifier of claim 14, wherein: Also included is a stall detection module configured to determine whether the water pump is stalled by detecting a current of the water pump.

19. The humidifier of claim 18, wherein: Also included is a display module connected with the stall detection module, and configured to display when the water pump is stalled.

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